Process for manganese removal from zinc metal bearing solutions

Details Process for manganese removal from zinc metal bearing solutions Process for manganese removal from zinc metal bearing solutions

1976-05-03

1978-01-10

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

423 50, 423146, C25C 116, C01G 4502, C01G 4914

Patent

active

040677893

ABSTRACT:
A process for the preferential removal of soluble manganous ions from a metal bearing solution, particularly a zinc sulfate solution to be subjected to electrolysis for the recovery of zinc, comprising treating said solution with an oxidant capable of oxidizing soluble manganous ion to insoluble and filterable gamma-manganese dioxide at a temperature and for a time sufficient to precipitate at least a portion of the manganese present in said solution as gamma-manganese dioxide, said oxidant being in an amount of from about 130% to 150% of the theoretical amount required for substantially total manganese removal from said solution, and separating said precipitate from said solution.

REFERENCES:
patent: 1395811 (1921-11-01), Gepp
patent: 3438878 (1969-04-01), Bell et al.
patent: 3667906 (1972-06-01), Sasaki
patent: 3691038 (1972-09-01), Roepenack et al.

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